Akuma Wa Sasayaku
A girl who watches the one she loves smile warmly at another woman from her seat at the window. A boy who watches this girl's sad expression and decides to befriend her. His intentions are not entirely pure.
14-sai No Koi
These two have to hide the fact that they are dating and act mature in front of their classmates. The love is so pure and realistic and it really does match the title incredibly well. The shy progression of their relationship, how puberty affects them, it depicts the romance between 14 year olds perfectly.
Anya Kouro
A girl who makes friends with the boy who takes the same train as her. Hope and something like sadness?
Kusumi-kun, Kuuki Yometemasu ka?
Kuzu no Honkai
Coffee & Vanilla
A fairytale romance kind of manga where the girl meets a rich, amazing, flawless man who sweeps her off her feet and showers her with all sorts of affection. Really idealistic and impossible, but it's nice to read about this kind of perfect love sometimes.
Shingeki No Kyojin Dj - In The Soup